Schizotypal personality traits and prediction of one's own movements in motor control: What causes an abnormal sense of agency?
Schizotypal personality traits and prediction of one's own movements in motor control: What causes an abnormal sense of agency?
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DOI：
10.1016/j.concog.2008.04.004
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发表时间：
2008-12-01
影响因子：
2.4
通讯作者：
Tanno, Yoshihiko
中科院分区：
文献类型：
--
作者：
Asai, Tomohisa;Sugimori, Eriko;Tanno, Yoshihiko
背景资料。积极的精神分裂症症状，特别是被动现象，包括幻听，可能是由异常的代理感引起的。具有分裂型人格特征的人也倾向于表现出这些。代理感认为，是自己引起或产生了一种行为。这种异常的自我调节意识可能是由于在运动控制中对自己动作的异常预测。方法。我们使用“消失的光标”范式进行了一项实验，要求非临床、健康的参与者使用看不见的鼠标光标点击目标。预测误差定义为目标与点击点之间的距离。结果。结果表明，分裂型人格特征，而不是抑郁或焦虑特征，与预测受试者左手运动的缺陷相关。特别是，幻听倾向与运动预测误差的关系最强。在这份报告中，我们还讨论了误差倾向(高估或低估自己的动作)。结论。这一发现与被动性现象或倾向性可能是由对自己行为或动作的异常预测所引起的观点一致。(C)2008 Elsevier Inc.保留所有权利。
Background. Positive schizophrenic symptoms, especially passivity phenomena, including auditory hallucinations, may be caused by an abnormal sense of agency. which people with schizotypal personality traits also tend to exhibit. A sense of agency asserts that it is oneself who is causing or generating an action. It is possible that this abnormal sense of self-agency, is attributable to the abnormal prediction of one's own movements in motor control. Method. We conducted an experiment using the "disappeared Cursor" paradigm ill which non-clinical, healthy participants were required to click on a target using an invisible mouse cursor. Prediction error was defined as the distance between the target and the click point. Results. The results showed that schizotypal personality traits, but not depressive or anxious traits, were correlated with deficits in predicting movements of the subjects' left hand. In particular, auditory hallucination proneness had the strongest relationship with movement prediction error. In this report, we also discuss the error tendency (overestimations or underestimations of one's own movements). Conclusions. This finding is in accordance with the idea that passivity phenomena or proneness may be caused by the abnormal prediction of one's own actions or movements. (c) 2008 Elsevier Inc. All rights reserved.